7
3. REPAIR WORK
3-1 Inspection/adjustment procedures
3-1-1 Inspection items
① If the pilot lamp(green) lights when the power is turned on
② If the halogen lamp lights about 10 seconds after the power is turned on
③ If the entire chart is uniformly bright
④ If the remote control pilot lamp(orange) remains light when the CCP controller is in operation
⑤ If the CCP controller enables correct chart selection
⑥ Positional relationship between chart and mask
⑦ Auto shut-off function (Halogen lamp goes out after a some 10 minutes’ pause in operation.)
3-1-2 Inspection criteria
z Positional relationship between chart and mask
1. When a vertical line mask is used:
No right and left parts of the chart must be visible (when viewed from the correct position).
(Chart symbols must virtually align with the center of the mask.)
C
C
C
0.2
0.4
0.3
No adjoining parts of the
chart must be visible.
< Fig E4 >